llinkerd_app_core connection refuesd - SERP Analysis

https://github.com/linkerd/linkerd2/issues/5331

https://linkerd.buoyant.io/t/connection-refused-error-in-linkerd-proxy-container/224

https://linkerd.io/2-edge/tasks/debugging-502s/

https://drdroid.io/stack-diagnosis/linkerd-linkerd-proxy-connection-refused

https://github.com/linkerd/linkerd2/discussions/4369

https://linkerd.io/2-edge/tasks/troubleshooting/

https://linkerd.buoyant.io/t/proxy-accepting-telnet-on-any-port/459

https://linkerd.io/2-edge/tasks/using-the-debug-container/

https://stackoverflow.com/questions/72894452/an-error-has-occurred-websocket-error-undefined-in-linkerd-dashboard

https://forum.linuxfoundation.org/discussion/860134/connection-closed-error-ingress-mode-routing-is-http-only-in-lab-11-2-ingress